21236520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4783}}^1$

素因数の和:4834

約数の個数: 64

約数和(自身を含む): 65445120

約数和(自身を除く): 44208600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4783, 9566, 14349, 19132, 23915, 28698, 38264, 47830, 57396, 71745, 95660, 114792, 143490, 176971, 191320, 286980, 353942, 530913, 573960, 707884, 884855, 1061826, 1415768, 1769710, 2123652, 2654565, 3539420, 4247304, 5309130, 7078840, 10618260, 21236520]

約数ペア:

[(1, 21236520), (2, 10618260), (3, 7078840), (4, 5309130), (5, 4247304), (6, 3539420), (8, 2654565), (10, 2123652), (12, 1769710), (15, 1415768), (20, 1061826), (24, 884855), (30, 707884), (37, 573960), (40, 530913), (60, 353942), (74, 286980), (111, 191320), (120, 176971), (148, 143490), (185, 114792), (222, 95660), (296, 71745), (370, 57396), (444, 47830), (555, 38264), (740, 28698), (888, 23915), (1110, 19132), (1480, 14349), (2220, 9566), (4440, 4783)]